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Master Bond adhesives

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Protactinium, Pa
Categories: Metal; Nonferrous Metal; Pure Element

Material Notes: Malleable and Ductile. Properties vary with isotope.

Physical Form: Shiny Metal; Tetragonal or Cubic

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Physical PropertiesOriginal ValueComments
Density 15.43 g/cc
 
Chemical PropertiesOriginal ValueComments
Atomic Mass 231.0359231.03588 - 1995
Atomic Number 91
X-ray Absorption Edge 0.11028 ÅK
 0.58748 ÅLI
 0.61064 ÅLII
 0.74138 ÅLIII
Electronegativity 1.5Pauling
Ionic Radius 0.890 ÅCrystal Ionic Radius for Valence +5
 0.980 ÅCrystal Ionic Radius for Valence +4
 1.13 ÅCrystal Ionic Radius for Valence +3
 
Mechanical PropertiesOriginal ValueComments
Bulk Modulus 157 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000150 ohm-cm
Magnetic Susceptibility 190emu/mol
Critical Superconducting Temperature 1.40 K
 
Thermal PropertiesOriginal ValueComments
Heat of Fusion 12.3 J/g
CTE, linear 9.90 µm/m-°C
@Temperature 30.0 - 700 °C
Specific Heat Capacity 0.09912 J/g-°CGas
Thermal Conductivity 47.0 W/m-K
Melting Point 1552 - 1592 °C
Heat of Formation 0.000 kJ/molCrystal
 607 kJ/molGas
 
Component Elements PropertiesOriginal ValueComments
Protactinium, Pa 100 %
 
Descriptive Properties
CAS Number7440-73-3

References for this datasheet.

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